.selectuser{
    width: 750rpx;
    position: absolute;
    background-color: #ffffff;
    padding: 0 20px;
    box-sizing: border-box;
    z-index: 999;
    bottom: 0;
    left: 0;
    right: 0;
    top: 0;
    justify-content: space-between;
    flex-wrap: wrap;
    flex:0 0 40%;
    image{
        width: 300rpx;
        height: 200rpx;
        margin-right: 58rpx;
        margin-top: 20rpx;
    }
    .image-size:nth-child(2n+1){
        margin-right: 0;
    }
    .image-size:first-child{
        margin-right: 58rpx !important;
    }
    .image-size:nth-child(2){
        margin-right: 0rpx !important;
    }
    .file-size{
        width: 150rpx !important;
        height: 150rpx !important;
        margin-right: 10rpx;
    }
    .btn{
        position: fixed;
        bottom: 10px;
        line-height:40px ;
        background-color: #1296DB;
        color: #fff;
        height: 40px;
        width: 650rpx;
        text-align: center;
        left: 50%;
        border-radius: 5px;
        transform: translateX(-50%);
    }
}
.content{
    height: calc(100vh - 100rpx);
    overflow-y: scroll;
}